King Grub
2015-10-21, 07:46
This study aimed to determine the effects of 12 weeks of isocaloric programs of high-intensity intermittent training (HIIT) or moderate-intensity continuous training (MICT) (or a short-duration HIIT (1/2HIIT) inducing only half the energy deficit) on a cycle ergometer, on body weight and composition, cardiovascular fitness, resting metabolism rate (RMR), respiratory exchange ratio (RER), non-exercise physical activity (PA) levels and fasting and postprandial insulin response in sedentary obese individuals. Forty-six sedentary obese individuals (30 women), with a mean BMI of 33.3±2.9 kg/m2 and a mean age of 34.4±8.8 years were randomly assigned to one of the three training groups: HIIT (n=16), MICT (n=14) or 1/2HIIT (n=16) and exercise was performed 3 times/week for 12 weeks. Overall, there was a significant reduction in body weight, waist (p<0.001) and hip (p<0.01) circumference, trunk and leg fat mass (FM) (p<0.01) and an increase in trunk and leg fat free mass (FFM) (p<0.01) and cardiovascular fitness (VO2max in ml/kg/min) (p<0.001) with exercise. However, no significant differences were observed between groups. There was no significant change in RMR, RER, non-exercise PA levels, fasting insulin or insulin sensitivity with exercise or between groups. There was a tendency for a reduction in AUC insulin with exercise (p=0.069), but no differences between groups. These results indicate that isocaloric training protocols of HIIT or MICT (or 1/2HIIT inducing only half the energy deficit) exert similar metabolic and cardiovascular improvements in sedentary obese individuals.
Int J Sport Nutr Exerc Metab. 2015 Oct 19. High-Intensity Interval Training and Isocaloric Moderate-Intensity Continuous Training Result in Similar Improvements in Body Composition and Fitness in Obese Individuals.
Int J Sport Nutr Exerc Metab. 2015 Oct 19. High-Intensity Interval Training and Isocaloric Moderate-Intensity Continuous Training Result in Similar Improvements in Body Composition and Fitness in Obese Individuals.